Description
The intertubercular sulcus (intertubercular groove or bicipital groove) is the vertical, longitudinal depression found on the anterolateral aspect of the proximal end of the humerus. It is located between the greater and lesser tubercles of the humerus and is bounded by the crests of these tubercles. Its inferior end is continuous with the anteromedial surface of the humerus.
The intertubercular sulcus is converted into a canal by the transverse humeral ligament, which connects the greater and lesser tubercles of the humerus. This canal contains the tendon of the long head of biceps brachii muscle and the ascending branch of the anterior circumflex humeral artery.
The floor of the intertubercular sulcus provides an insertion site for the latissimus dorsi muscle.